Your dream is quite vivid and can be interpreted in several ways. The experience of being paralyzed and only able to crawl suggests feelings of helplessness or being trapped in some aspect of your waking life. This could relate to a situation where you feel limited or unable to take action.

The dark figure you encountered may symbolize a fear or anxiety that you are currently grappling with. It is common for unresolved issues or stressors to manifest as ominous figures in dreams. The fact that you could hear a response but cannot remember it might indicate that there are insights or answers you are seeking, but they are currently elusive.

The open door in your dream can represent opportunities or changes that are either inviting or intimidating. It might reflect your subconscious desire to explore new possibilities, but also the fear of the unknown.

Overall, this dream may be urging you to confront whatever is causing you stress or anxiety in your waking life. Reflect on the areas where you feel stuck and consider taking small steps towards addressing those feelings. Journaling or discussing your feelings with someone you trust may also help in processing these emotions.